Watch and jewelers&#39; vise



1811- 1945- c. B. GREENBERG MATCH AND JEWELERS VISE Filed Sept. 9, 1942 Fic .8

Charles B. Greenberq.

INVENTOR BY ML ATTORNEY Pa-tent dJ n- 2, 1945 I 2 WATCH AND mwme 'i g Charles B. Greenbergylfiew York, ,N. Application September 9, 1942, Serial No. 457,727

2 Claims.

My invention relates to vises and in more detail to a precision type of Watch vise suitable for gripping and holding firmly yet lightly small and delicate elements such as watch parts. I

Anobject of my invention is to design a type of jewelers watch vise in which both jaws are slidably'mounted. Another object is to form the chucks with shaped sections and overhanging lips in order to grip firmly a variety of forms. A third object is to mount the chucks in a manner which will minimize play in the gripping elements. A fourth object is to form a vise inwhich there are three separate places of contact between-the chucks and thebase. A fifth objectis to design a simple, inexpensive and easily assembled vise requiring no welding, freezing or soldering of parts. I

I accomplish these and other objects by forming my watch vise with a base part provided with double seated angled groove guideways, two opposingly female threaded chucks, having wedged and shaped lugs suitable for gripping and also provided with angled guides extending into and carried by the guideways of the base part and a shaft opposingly threaded at each end to function with the chucks and centrally enlarged to the chucks are provided, in a direction perpen- ,dicular to their travel, with the straight sides IB and the arcuate sides 11 both of which are provided with the under cut gripping shoulders or lugs. In addition an indenture i8 is provided so that a watch can be held flat orlevel even though I the crown has not been removed.

So that the vise can be operated speedily the two chucks are provided, at about their mid sections and in thedirection of their travel, with opposingly female threadings I9 to carry ashaft 20 I'heshaft 20 is appropriately threaded to carry and function with the chucks 3 and 4, one at each end. To increase the stability of the moving elements and, reduce the play in the chucks to a I minimum there is provided at the center of the shaft an enlarged section or flange 23 which rests inan opening 24 in the cradle 25 of the rest in and be retained in and guided by a cross bar secured to the base part.

In the drawing Fig. 1 shows a plan view of my vise, Fig. 2 shows a side view in the direction of 1 the axis of the shaft of the vise, Figu3 shows 1 a sideview in a direction perpendicular to the axis of the vise shaft and Fig. 4 shows an enlarged detail of the shaft, cross bar and part of a chuck.

Referring now to the drawing, in which similar vise, in general, is designated by l,the base 2, and the chucks 3 and 4, respectively.

The base I is formed of a, circular ring underpart 5 supporting an upper part of two shoulder I numbers represent corresponding elements, the

elements 6 each having upper faces 1, and opposing side faces 8. The opposing faces 8of the shoulders are each provided with an angled section 9, horizontal seat l0 and vertical section II,

which form a guideway to carry the chucks 3 and 4.

In order to reduce the play of and hold the chucks 3 and 4 in the guideway they are each provided at their lower extremities with the;

under face l2, angled section l3, and the'raised under face l4 complementary respectively to and functioning against their corresponding guideway parts, the horizontal seat [0, angled section 9, and upper face I. The upper extremities of cross bar or strap 26. The cross bar or strap 26 extends across the opening between the opposing faces 8 of the upper partof the base and is se- A variation in the details of construction can be-made by providing a flange on or in the cradle and a reduced portion in the shaft to carry the flange. Also, instead ofa cradle, the cross bar can be builtup about the sides of the shaft and the same results are obtained as by the flange 23 resting in the opening 24 in the cradle 25 of the cross bar. A

Inorder that the opposing faces 2| of the chuck can travel beyond and close over the cross bar and the enlarged center flange of the shaft the faces are provided at the position of the threadings with the cut out or enlarged openings 22. In order to easily operate the chucks the ends of the shaft are provided with the knurled enlarged heads2B.@ p I Although I have only shown and described my vise in its main form, several variations are posnsible without departing fromthe spirit and scope of the ideas conveyed in the drawing and descriptions, and so I desire to cover all modifications, forms or embodiments of my inventioncoming within the scope and language of any and all i f claims.

n I claim: 1 I

1. A watch vise comprising a base part, two

opposing chuck elements partly resting and functioning inthe base part and a chuck motivating shaft means having an enlarged flanged portion at its center, the base part being provided with I an angledshouldered guideway, the chuck elecured to the under part of the base by the screws I function in the guideway and opposing gripping faces to hold objects and each chuck opposingly female threaded'to co-act with the chuck motivating shaft and a strap attached at each end to and extending across the base part and said strap provided with a cradle section aligned with the shaft and having an opening therein into which the enlarged flanged portion of the shaft means rests and by which the shaft is held from movement in an axial direction.

2. A watch vise comprising a base part, two opposing chuck elements partly resting and functioning in the base part and a chuck motivating shaft means, the base part being provided with an angled shouldered guideway, the chuck elements being provided with seating portions to function in the guideways and opposingly gripping faces to hold objects and each chuck opposingly female threaded to co-act with the chuck motivating shaft and a cross bar in the base part provided with a cradle having a recessed portion therein, and a flange on said shaft, said cradle and recessed portion functioning with theflange to limit the play in and guide the movement of the shaft, and the chucks provided with cut out portions in their opposing :parts about their threadings of such a size as to permit the chucks to close over the cross bar and contact each other.

CHARLES B. GREENBERG. 

